Simple-minded fix for bug #50847

bug #50847: #line directive corrupts #include search path
Keep a second copy of the filename, that isn't changed by the #line directive,
and use that on the initial search path for #include files.

1 files changed, 2 insertions, 1 deletions

diff --git a/tccpp.c b/tccpp.c
index 720115d..1f3b083 100644
--- a/tccpp.c
+++ b/tccpp.c
@@ -1792,7 +1792,8 @@ ST_FUNC void preprocess(int is_bof)
                 /* search in file's dir if "header.h" */
                 if (c != '\"')
                     continue;
-                path = file->filename;
+                /* https://savannah.nongnu.org/bugs/index.php?50847 */
+                path = file->filename2;
                 pstrncpy(buf1, path, tcc_basename(path) - path);
 
             } else {